The image shows a stationary clock and a clock located on a rocket moving at constant velocity.

Both clocks click when a photon bounces.

You may:

* Change the rocket's speed (as a percentage of the speed of light) * Restart both clocks with the Reset button * See the "Version of the applet with length contraction"http://inspire.eun.org/index.php/P3-17-11

http://illuminations.nctm.org/ActivityDetail.aspx?ID=37Frequently sound is described using terms such as pitch, tone, frequency, intensity or loudness. To understand the origins of these terms as well as to understand the mathematical models used to represent sound, this applet can help you to explore the dynamics of a sound wave.

вторник, 9 ноември 2010 г.

The Greenlight for Girls “Science Day” aims to get girls interested in science and technology through interactive workshops on subjects ranging from digital music to DNA research. The workshops are led by outstanding women in their fields.

Registration is open for girls aged 11 to 15 from the Brussels region at www.greenlightforgirls.org/event-registration/Export to iCal